Over the past couple of evenings I stretched myself, ;))), to make the Jalie 2795 fleece jacket (thanks, Kay!). Not counting the fleece interlining of my Dr. Zhivago greatcoat and some mitten-making games, this was my very first fleece garment. And the fleece was thick. Stretchy, yes, and very, very thick:
Forcing all these layers of the stuff under the needle was truly a stretch for me. Huffing and puffing all the way.
I used size T, per my full bust; lengthened the body by 1.25" and shortened the sleeve by 3/4". The nice soft thick fleece I sewed up yielded the desired cozy little topper. So far so good.
However. This is a very body-conscious pattern: the raglan armscye is very high - any higher and it would be cutting off circulation to my arms. The sleeves are narrow, and the upper chest is pretty close to the body. I think it would work much better in a thin fleece, as a lightweight garment than an outerwear type jacket. In fact, that's sort of how it's portrayed on the envelope: a thin, lightweight topper.
A comparison with my ancient and much loved fleece jacket from MEC (Mtn Equipment Coop) is instructive:
In the Jalie, the raglan seam is a good 2" shorter...
... the chest is about 2" narrower on each side... (and, interestingly, the back is wider than the front - note the location of the side seam)